text in table

[Hosun]

Hi, 

I made EPUB from Id.

With full width to display, Timeline 1 is presented in a single line (Screenshot 2).

With narrowed width to display, Timeline 1 is presented in two lines (Screenshot 3).

Is there anyway to make it in a single line on EPUB?

Hosun

Screenshot 1. IdScreenshot 2. full widthScreenshot 3. narrowed width

[Hosun]

I put in nonbreaking spaces (Screenshot 1).

It looks fine (Screenshot 2).

Hosun

Screenshot 1. IdScreenshot 2. EPUB